Qazaishvili opened the scoring in the 22nd minute. After San Jose played a quick corner kick, he flicked it over goalkeeper Joe Willis. In the 75th minute, Tommy Thompson sent a cross through traffic and Qazaishvili created space to slot it past Willis for his third goal of the season.
San Jose (6-6-4) extended its unbeaten streak to five games. Houston (7-5-3) is winless in four games.